When you neglect to do regular transmission service, your car's transmission can lead to costly breakdowns, towing charges, and repair bills. In many instances, a neglected transmission leads to a costly failure that causes many car owners to give up and buy another vehicle. It is much more affordable to do preventive maintenance and keep your transmission or manual clutch in good working order. A well-maintained transmission often will last the lifetime of the car. That makes it very important to ensure you have timely transmission service done to prevent a costly breakdown, towing bills, and repair bills. It often costs several thousand dollars to replace a transmission. It costs only a small fraction of that to maintain one and help it last.